Spinning-spindle



Dec. 29, 1964 H. GLASTRA 3,152,994

SPINNING-SPINDLE Filed June 26, 1962 IN VEN TOR.

flin /1'6 Gluing f M A first 3,162,994 SPINNlNG-SPINDLE Hendrik Glastra,25 Van t Hotllaan, Enschede, Netherlands Filed June 26, 1962, Ser. No.205,365 Claims priority, application Netherlands, July 13, 1961, 267,0722 Claims. (Cl. 57-130) This invention relates to a spinning spindle fora ring spinning frame, designed to be combined with a winding machine,which, immediately after dofiing, rewinds the yarn into larger bobbins,for example cones.

In the known combinations of spinning-frames and winding-machines, whendofling, the full bobbins are taken from the spindles and placed in arow in front of the spindles. Being in this position they aresubsequently wound off, while empty bobbins placed on the spindles arebeing wound up. Each time the full bobbins have been completely woundoff and the bobbins on the spindles have meanwhile been wound up, theempty and the full bobbins are interchanged and a new cycle starts.

It is the object of the invention to provide a spinning spindle withwhich this method may be carried out in a simple way.

For this purpose the spinning spindle of the invention comprises twocoaxial cylindrical parts having equal diameters and approximately equallengths, the upper part being connected to a driving mechanism and thelower part being freely rotatable.

By applying spindles of this type, existing spinning frames may bearranged so as to carry out the abovedescribed method in combinationwith one or more winding machines, whilst in addition to this in aspinning frame appointed in this manner doifing is an exceptionallysimple operation.

In spinning, the yarn is wound on to the upper part of the spindle,whereby it is preferred for a lengthways divided tube to be disposed onthe spindle first. As soon as a yarn packet has been formed in thismanner, it is shoved on to the lower, freely rotatable part of thespindle; on the upper part of the spindle is placed an empty tube, whichis likewise divided lengthways, and the two halves of which are kepttogether by elastic bands, adhesive tape or similar means. While theupper part is being wound up again, the yarn from the freely rotatablelower part can be rewound into larger bobbins.

United States Patent 3,162,994 Patented Dec. 29, 1964 After rewindingthe tube can be removed from the lower part, because it consists of twohalves.

The accompanying drawing shows an embodiment of a spindle according tothe invention and in which FIG. 1 is a vertical cross section and FIG. 2is a vertical side elevation showing spun yarn being wound onto a bobbinon the upper part of the spindle while yarn is being removed from thelower part.

The spindle has a central shaft 1, which is supported in the usualspindle bearing not shown in the drawing. The said shaft is driven by adriving belt which runs on the pulley 2. The cylindrical upper part 3 isfixedly fastened to the shaft; the cylindrical lower part 4 can freelyrotate about the shaft 1 by means of the ball bearings 5 and 6.

During operation the upper part 3 is first completely wound up with thespun yarn; after this the yarn packet is shifted on to the lower part 4and a new yarn packet is formed on the part 3. The yarn now present onthe part 4 is then wound off therefrom to form a cone. FIG. 2 shows spunyarn 7 being wound onto a bobbin 8 on the upper part 3 of the spindle bymeans of the diagrammatically shown conventional traveller 9 and ring 10of a ring spinning machine. The dotted lines show the bobbin 8 whenready to be dofled.

On the lower part 4 of the spindle, FIG. 2, there is shown a bobbin 11,the yarn of this bobbin being removed at 12. The dotted lines show thebobbin 11 before the rewinding was started.

I claim:

1. Spinning spindle for the combination of a spinning frame and awinding machine, comprising two coaxial cylindrical parts having thesame diameter and substantially the same length, the upper part beingconnected to a driving element and the lower part being freelyrotatable.

2. A spinning spindle comprising two coaxial parts of which one is anupper cylindrical part connected to a shaft, and the other is a lowercylindrical part freely rotatable on the shaft.

References Cited by the Examiner UNITED STATES PATENTS 3,067,565 12/62Jackson 57-54 MERVIN STEIN, Primary Examiner. RUSSELL C. MADER,Examiner.

2. A SPINNING SPINDLE COMPRISING TWO COAXIAL PARTS OF WHICH ONE IS ANUPPER CYLINDRICAL PART CONNECTED TO A SHAFT, AND THE OTHER IS A LOWERCYLINDRICAL PART FREELY ROTATABLE ON THE SHAFT.